Tonight, the final five went back to school — Occidental College, to be exact — to make over two rooms for the Sigma Alpha Epsilon fraternity and Alpha Lambda Phi Alpha sorority.

Like most college living spaces, these two rooms were in need of serious help. David split the final five into two teams — girls vs. boys — to work their design magic on the beanbag-clad Greek houses. Here’s what went down (and who went home.)

Design Star fans always ask: “How did so-and-so make that backsplash?” and “How can I make my walls look like that guy’s room from the show?” This year, we listened! Remember Rachel’s super-trendy chevron-painted dressers?

Rachel's Winning White Room Challenge Space

Design Star design producer and HGTV.com contributor Brian Patrick Flynn shows you everything you need to know to prep, paint and finish a chevron-patterned dresser at home. Looks great in purple, pink and white, no?

I may be busy shooting Candice Tells All, but I’m still keeping a close eye on Design Star! This week, extraordinary designer Thom Filicia came by to lend his style expertise to one of my all-time favorites: the White Box Challenge. It killed me not to be there. This time, the designers were each given an identical room and asked to transform it using only restaurant supplies. They were told specifically not to create functional spaces. This challenge is a great opportunity for the designers to really express themselves by thinking unconventionally (which can prove to be difficult for even some of the best designers).